JP2008231758A - Seismic reinforcement for masonry walls, seismic reinforcement equipment, and seismic reinforcement methods for masonry walls - Google Patents

Abstract

[PROBLEMS] To not only facilitate driving, but also reduce necessary strength and rigidity, and further improve economic efficiency and construction workability.
A seismic reinforcement material 101 for a masonry wall according to the present invention includes a reinforcing material body 104 having a sharpened portion 103 at the tip of a cylindrical body 102 having both ends open, and a striking material inserted into the cylindrical body 102. It consists of a rod 105. On the back surface of the sharpened portion 103, a main body side hit portion 106 with which the tip of the hitting rod 105 abuts is formed. A slit 107 as a discharge port is formed in the cylindrical body 102, and the grout material press-fitted into the hollow space 108 in the cylindrical body 102 can be discharged around the reinforcing material main body 104 and injected into the gap of the garnet. It is like that.
[Selection] Figure 1

Description

  The present invention relates to a seismic reinforcement material for masonry walls mainly intended for empty retaining walls, a seismic reinforcement facility, and a seismic reinforcement method for masonry walls.

  When laying a train track or constructing a road near the slope of a slope with a steep slope (the lower end of the slope), if a landslide occurs, the damage is tremendous. Therefore, it goes without saying that appropriate slope protection is indispensable.

  Slope protectors include mortar and concrete sprays, slope frames, slope greening, reinforced earthworks, etc., all of which are appropriately selected according to the slope and soil properties, and widely used. ing.

  Here, as one of the reinforced earthwork, there is a so-called empty loading retaining wall that piles up masonry called machinite while filling the back with stones. In general, it is poor in earthquake resistance compared to a concrete retaining wall (a type of gravity retaining wall) filled with concrete on the back.

  Therefore, in order to seismically reinforce such an empty retaining wall, a grout material injection hole is drilled at the corner where the stones meet and the center of the stone, and a reinforcing material such as a deformed reinforcing bar is formed in the grout material injection hole. There is known a seismic reinforcement method in which a grout material is injected by inserting a grout pipe into a gap between a reinforcing material and a grout material injection hole after inserting a (core material).

  However, in such a seismic reinforcement method, since the grout pipe must be inserted into the gap between the reinforcing material and the grout material injection hole after the reinforcement material is inserted into the grout material injection hole, the drilling hole diameter is, for example, about 100 mm in diameter. Where it is necessary to increase the size, when trying to press-fit a relatively high-viscosity grout material, the grout material overflows from the grout material injection hole due to the large drilling diameter, and conversely, if the grout material has a low viscosity, After the injection, it hangs down by its own weight as it travels through the burial stone, and the filling range of the grout material is biased, and in any case, the trouble that the wisdom stone and the burial stone cannot be integrated is caused.

JP2005-9207 JP-A-2005-9208 JP-A-2005-9209

  In order to improve such problems, the present applicant has developed a new masonry wall reinforcing material and a method for seismic reinforcement of a masonry wall using the same. When performing seismic reinforcement of a masonry wall using this masonry wall reinforcement, first, the hollow porous tube main body constituting the masonry wall reinforcement is inserted into the grout material injection hole from its tip, and then the hollow porous tube main body After screwing the impact cap into the male thread provided on the base end side of the stone, the masonry wall is reinforced with the impact cap as the impact surface while pushing the burial stone filled on the back of the masonry material After the driving is finished, remove the impact cap from the external thread and screw in the connecting female thread member, then screw the end of the grout hose to the opposite side of the connecting female thread member to reinforce the grout wall Feed it into the material.

  According to this invention, it is possible to inject the grout material through the masonry wall reinforcing material, so it becomes possible to significantly reduce the diameter of the grout material injection hole to be drilled in the masonry material, Even if the injection pressure is set high, there is no risk of grouting material leaking from the grouting material injection hole, and the injected grouting material is securely filled in the gap between the lining stones and integrated with the masonry material. Is possible.

  However, in the above invention, when the masonry wall reinforcing material is driven, the impact cap needs to be screwed into the proximal end side of the hollow porous tube main body. Since the impact cap screwed into the impact surface is used as the impact surface, the hollow porous tube body is bent due to buckling or impact force eccentricity, which makes it impossible to perform subsequent impacts. The striking force is reduced by the frictional force between the peripheral surface of the tube main body and the garnet, and the hollow porous tube main body cannot be driven to the required depth.

  Also, in order to prevent bending deformation due to the impact force, the hollow porous tube body must be manufactured with sufficient strength and rigidity. As a result, the weight of the hollow porous tube body increases, There was also a problem that the workability of the time was forced to drop.

  In the conventional method, since the discharge position of the grout material depends on the position of the discharge port formed in the hollow tube main body and the driving depth of the hollow porous tube main body, after the hollow porous tube main body is once driven, When the discharge position of the grout material is limited and the wall thickness of the masonry wall is large, there has been a problem that uniform injection of the grout material becomes difficult.

  The present invention has been made in consideration of the above-described circumstances, and not only facilitates driving, but also reduces necessary strength and rigidity, and further improves economic efficiency and construction workability. The purpose is to provide seismic reinforcement and seismic reinforcement equipment.

  It is another object of the present invention to provide a method for seismic reinforcement of a masonry wall that can uniformly inject a grout material even when the wall thickness of the masonry wall is large.

  In order to achieve the above object, the seismic reinforcing material for a masonry wall according to the present invention, as described in claim 1, includes a reinforcing material main body having a sharp tip provided at the tip of a cylindrical body, and a base inserted into the cylindrical body. A striking rod having a rod-side striking portion formed on the end side, and the main body-side striking portion with which the tip of the striking rod abuts is inside the cylinder and behind the sharpened portion By providing, it is configured so that the striking force from the striking rod can be transmitted to the sharpened portion via the main body side striking portion, and a discharge port through which the grout material press-fitted into the cylindrical body is discharged is provided in the cylinder. It is formed on the body.

  Further, the seismic reinforcing material for a masonry wall according to the present invention is formed such that the sharpened portion is formed in a conical shape, and the cylindrical body is formed by a double-end open type cylinder whose both ends are released, and the tip of the double-end open type cylindrical body Are welded to the periphery of the cone bottom surface of the sharpened portion, and the cone bottom surface is used as the main body side hit portion.

  In addition, the seismic reinforcement system for masonry walls according to the present invention includes, as described in claim 3, a reinforcing material main body having a sharpened portion provided at the distal end of a cylindrical body, and a rod side cover on the proximal end side which is inserted into the cylindrical body. A masonry reinforcement facility comprising a masonry wall reinforcing material comprising a striking rod formed with a striking portion, and a grout material injection hose connected to the cylinder instead of the striking rod, the striking rod A hitting force from the hitting rod is sharpened through the main body side hitting part by providing a main body side hitting part against which the tip of the main body hits inside the cylindrical body and behind the sharpening part. It is configured so that it can be transmitted to the part, and a discharge port through which the grout material press-fitted into the cylinder is discharged is formed in the cylinder.

  Moreover, the seismic reinforcement facility for masonry walls according to the present invention is provided with a sealing material that is slidably in contact with the inner peripheral surface of the cylindrical body on the outer peripheral surface in the vicinity of the tip of the grout material injection hose.

  Further, according to the method for seismic reinforcement of a masonry wall according to the present invention, a masonry material constituting the masonry wall is drilled to form a grout material injection hole in the masonry wall, and a sharp portion is formed. Is inserted into the grout material injection hole, and the back surface of the masonry material is filled with a seismic reinforcing material body formed by forming a discharge port through which a grout material is discharged in a cylinder provided at the tip. Driving the reinforcement main body into the masonry wall while pushing out a burrow stone, inserting a grout material injection hose into the cylinder, and operating a pressure pump connected to the proximal end side of the grout material injection hose A method for seismic reinforcement of a masonry wall in which grout material is discharged from the discharge port by a plurality of the discharge ports arranged along the material axis direction of the cylindrical body or slit-shaped along the material axis direction of the cylindrical body And forming The grouting material inserted into the cylindrical body while the pressure feeding pump is operated while a sealing material slidably contacting the inner peripheral surface of the cylindrical body is provided on the outer peripheral surface near the tip of the grouting material injection hose. The injection hose is withdrawn continuously or intermittently from the cylinder.

  Further, the seismic reinforcement method for a masonry wall according to the present invention includes a striking rod inserted into the cylinder and having a rod-side striking portion formed on the base end side in the seismic reinforcement, and the grout material injection hole The striking rod is inserted into the cylinder of the inserted reinforcing material main body, and the tip of the striking rod is in contact with the hitting portion on the main body side provided inside the cylindrical body and behind the sharpened portion. The reinforcement body is driven into the masonry wall by hitting a rod side hit portion provided on the base end side of the hitting rod in a state where the hitting rod is driven, and after the driving is finished, the hitting rod is removed from the cylindrical body. Drawing out and removing, and then inserting the grout material injection hose into the cylinder.

  In order to seismically reinforce a masonry wall using the seismic reinforcement material and the seismic reinforcement equipment according to the first invention, first, a masonry material constituting the masonry wall is drilled, and a grout material is formed in the masonry material. An injection hole is formed. As the drilling position, for example, the center of the masonry material or the vicinity of the corner where the adjacent masonry materials meet can be considered.

  Next, the reinforcing material body constituting the seismic reinforcing material is inserted into the grout material injection hole so that the sharpened portion is at the back. The reinforcing material body is provided with a sharp portion at the tip of the cylinder, and the reinforcing material body also serves as a grout injection tube.

  Next, at the same time as or after the insertion of the reinforcing material body, the striking rod is inserted into the cylindrical body constituting the reinforcing material body.

  Next, the main body side hit portion provided inside the cylindrical body and behind the sharpened portion, in other words, the main body side hit portion positioned at the deepest portion of the hollow space formed in the cylindrical body, the striking rod In this state, the base end side of the striking rod is hit.

  That is, in the present invention, when the driving is performed, the reinforcing material main body is not directly hit, but an impact rod is inserted into the cylindrical body constituting the reinforcing material main body and the tip is pressed against the hitting portion on the main body side. Then, the reinforcing material body is indirectly hit by hitting the hitting rod.

  If it does in this way, impact power will act on a part ahead from a main part side hit | damage part, mainly a sharp part, and hit | damage force will not act on the cylinder located back from a main part side hit part.

  For this reason, the cylindrical body does not buckle due to the striking force, and in the conventional case where the hollow perforated tube body is hit directly, the hollow perforated tube body is bent or counteracted from the garnet when the striking force is eccentric. However, in the present invention, since the reinforcing material body is not directly hit, there is no room for the problem that has occurred in the past.

  The driving may be performed by an operator using, for example, a hammer. In addition, since the reinforcing material main body is provided with a sharp portion at the tip of the cylindrical body, by appropriately adjusting the striking force of the striking rod, it can be driven to a desired depth while escaping the lining stone to the side. . Moreover, it is arbitrary whether it penetrates to the back ground by penetrating the filling area of the garnet.

  When the reinforcing material body is driven into the masonry wall by indirectly hitting the reinforcing material body with the striking rod, the striking rod is pulled out, and then the grout material injection hose is connected to the cylinder.

  Next, by operating a pumping pump connected to the base end side of the grout material injection hose, the grout material is pumped to the hollow space of the reinforcing material body, and then from the discharge port formed in the cylindrical body of the reinforcing material body The grout material is discharged.

  The grout material may be appropriately selected from, for example, cement milk, mortar and other known grout materials.

  In the present invention, since the grout material can be injected through the reinforcing material body, the diameter of the grout material injection hole to be drilled in the masonry material can be significantly smaller than before, Combined with the action of the reinforcing material body, that is, the action of discharging the grout material injected into the hollow space from the discharge port, even if the injection pressure is set high to inject a highly viscous grout material, the grout material injection hole There is no concern of grouting material leaking.

  Therefore, not only can the discharged grout material be reliably filled in the gap between the lining stones and integrated with the masonry material, but also the reinforcement effect of the reinforcement material body is added, so the masonry wall has a high level It becomes possible to reinforce earthquake resistance.

  The striking rod can be inserted into the cylinder, and when the striking force is applied from the rod-side striking portion formed on the base end side, the striking force is applied to the main body side of the reinforcing material body at the tip. As long as the structure can be transmitted to the part, any known member can be appropriately selected, and a simple and typical example includes a screw rebar.

  The pointed part needs strength and rigidity that can push the lining stone and drive the reinforcement body when it receives impact force from the impacted part on the main body side. There is no need to consider.

  The cylinder need only be open on the base end side so that the striking rod can be inserted, and the tip may be open or closed (bottomed). That is, the sharpened portion may be formed in a conical shape, and the cylindrical body may be formed of a double-ended open cylinder whose both ends are released, and the tip of the double-ended openable cylinder may be welded to the peripheral edge of the cone bottom of the sharpened portion. In such a configuration, the above-described conical bottom surface becomes the main body side hit portion. On the other hand, when using a bottomed cylindrical body, the bottom part of the cylindrical body located behind the sharpened part becomes the main body side hit part.

  In the seismic reinforcement method for a masonry wall according to the second invention, first, a masonry material constituting the masonry wall is drilled to form a grout material injection hole in the masonry material.

  Next, the reinforcing material body of the seismic reinforcing material is inserted into the grout material injection hole. Here, the reinforcing material body is formed with a discharge port through which the grout material is discharged in a cylindrical body having a sharpened tip provided at the tip, and a plurality of such discharge ports are arranged along the material axis direction of the cylindrical body. Or, it is formed in a slit shape along the material axis direction of the cylinder.

  Next, the reinforcing material body is driven into the masonry wall while pushing the burial stone filled on the back of the masonry material.

  Next, a grout material injection hose is inserted into the cylinder. On the outer peripheral surface in the vicinity of the tip of the grout material injection hose, there is provided a seal material that slidably contacts the inner peripheral surface of the cylinder.

  Next, the grout material is discharged from the discharge port by operating the pumping pump connected to the base end side of the grout material injection hose. While the pumping pump is operated, the grout inserted into the cylinder body is discharged. The material injection hose is withdrawn continuously or intermittently from the cylinder.

  If it does in this way, grout material will be inject | poured in advance from the back | inner side of a masonry wall, and will be inject | poured sequentially toward the near side of a masonry wall after that. Therefore, even if the wall thickness of the masonry wall is large, it becomes possible to inject the grout material reliably and uniformly.

  The seismic reinforcing material used in the second invention forms a discharge port through which a grout material is discharged into a cylindrical body provided with a sharpened tip at the tip, and includes a plurality of the discharge ports along the axial direction of the cylindrical body. As long as it is provided with a reinforcing material body that is arranged or formed in a slit shape along the material axis direction of the cylindrical body, how it is configured is arbitrary, and the reinforcing material body is directly struck and driven into the masonry wall Although the type of seismic reinforcing material is included, the indirect impact type seismic reinforcing material according to the first invention can be used.

  In such a case, the striking rod was inserted into the cylinder of the reinforcement main body inserted into the grout material injection hole, and then the tip of the striking rod was provided inside the cylinder and behind the sharpened portion. The reinforcement main body is driven into the masonry wall by striking the rod-side striking portion provided on the base end side of the striking rod while being in contact with the main body-side striking portion.

  Then, after the driving is completed, the hammering rod is pulled out and removed from the cylindrical body, and then the grout material injection hose is inserted into the cylindrical body. Thereafter, the grouting operation is performed in the same manner as in the direct hammering type.

  According to such a configuration, the striking force acts only on the part ahead of the main body side hit part, mainly the sharp part, and no striking force acts on the cylinder located rearward from the main part hit part.

  Therefore, the cylindrical body is not buckled by the striking force, and problems such as occurrence of bending deformation and loss of striking energy due to the eccentricity of the striking force are not caused.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a seismic reinforcing material for a masonry wall, a seismic reinforcing facility, and a seismic reinforcing method for a masonry wall according to the present invention will be described with reference to the accompanying drawings. Note that components that are substantially the same as those of the prior art are assigned the same reference numerals, and descriptions thereof are omitted.

  FIG. 1 is a diagram showing a seismic reinforcing material for a masonry wall according to the present embodiment. As can be seen in the figure, the masonry wall seismic reinforcement member 101 according to the present embodiment is inserted into the cylinder body 102 and a reinforcement body body 104 having a sharpened portion 103 provided at the tip of a cylinder body 102 with open ends. And a striking rod 105 to be hit.

  The sharpened portion 103 is formed of a conical steel material, and the cylindrical body 102 is formed of a circular steel pipe having an outer diameter substantially the same as the outer diameter of the conical bottom surface of the sharpened portion 103, and its tip Is welded to the peripheral edge of the conical bottom surface of the sharpened portion 103.

  For the cylindrical body 102, for example, a steel pipe having an outer diameter of about 30 mm and a thickness of about 3 mm can be used.

  The striking rod 105 is formed of a screw rebar, and has an outer diameter set slightly smaller than the inner diameter of the cylindrical body 102 so that it can be inserted into the cylindrical body 102. A rod-side hit portion 109 that is hit with a hitting tool such as the like is provided. For the hitting rod 105, for example, when the cylindrical body 102 is a steel pipe having an outer diameter of about 30 mm and a thickness of about 3 mm, a deformed rebar of D22 can be used. The rod side hit portion 109 can increase the hitting surface and increase the efficiency of the driving work, for example, by screwing a nut into the proximal end side of the screw rebar.

  On the innermost deepest part of the cylindrical body 102, that is, on the back surface of the sharpened portion 103, a main body side hitting portion 106 with which the tip of the hitting rod 105 abuts is formed, and the hitting force from the hitting rod 105 is applied to the main body. It can be transmitted to the sharpened portion 103 via the side hit portion 106.

  The sharpened portion 103 has sufficient strength and rigidity to push the lining stone and drive the reinforcing material main body 104 into the back of the masonry wall when receiving a striking force from the main body hitting portion 106.

  A long hole 107 as a discharge port is formed in the cylindrical body 102, and the grout material press-fitted into the hollow space 108 in the cylindrical body 102 is discharged around the reinforcing material main body 104 and injected into the gap of the garnet. It can be done.

  The long hole 107 has a long axis aligned in the material axis direction of the cylindrical body 102 and arranged in a plurality along the material axis direction so that the grout material can be injected reliably and uniformly from the back side to the near side of the masonry wall. It is.

  FIG. 2 is a schematic view showing the seismic reinforcement facility for masonry walls according to the present embodiment. As can be seen from the figure, the masonry wall seismic reinforcement apparatus 121 according to the present embodiment has a flexible structure in which the tip is inserted into the cylindrical body 102 in place of the seismic reinforcement material 101 and the striking rod 105 described above. A grout material injection hose 122 and a pressure feed pump 123 connected to the grout material injection hose are provided. The mortar kneaded in a mixer (not shown) is pressure-fed by the pressure feed pump 123, and the grout material injection hose 122 is passed through. It can be poured into the masonry wall 124.

  Here, a sealing material 125 slidably contacting the inner peripheral surface of the cylindrical body 102 is attached to the outer peripheral surface near the tip of the grout material injection hose 122 as shown in FIG. The grout material press-fitted from the hose 125 can be prevented from leaking from the cylindrical body 102. Such a sealing material 125 can be composed of an O-ring.

  In order to seismically reinforce the masonry wall 124 using the seismic reinforcement member 101 and the seismic reinforcement device 121 according to the present embodiment, first, as shown in FIG. The knowledge stone 41 is drilled to form a grout material injection hole 42 in the stone.

  As the drilling position, there are a case in which the center of the Satoshi stone 41 is located as shown in FIG. 5 and a case in the vicinity of the corner where the adjacent Satoshi stones 41 meet as shown in FIG. It is done.

  Next, as shown in FIG. 3 (b), the reinforcing material body 104 is inserted into the grout material injection hole 42. Here, when inserting the reinforcing material main body 104, the long hole 107 which is a discharge port faces upward.

  Next, as shown in FIG. 4 (a), the striking rod 105 is inserted into the cylindrical body 102 of the reinforcing material main body 104 inserted into the grout material injection hole 42, and then the tip of the striking rod 105 is sharpened. By hitting the rod side hitting portion 109 provided on the base end side of the hitting rod in a state of being in contact with the main body side hitting portion 106 formed on the back side of 103, The reinforcement main body 104 is driven into the masonry wall 124 while pushing away the burial stone 43 filled in the stone.

  That is, when driving, the reinforcing material main body 104 is not directly hit, but the hitting rod 105 is inserted into the cylindrical body 102 constituting the reinforcing material main body 104, and the tip thereof is inserted into the main body side hit portion 106. The reinforcement body 104 is hit indirectly by hitting and then hitting the hitting rod 105.

  In this way, the striking force acts only on the part ahead of the main body side hit part 106, mainly only the sharp part 103, and the striking force acts on the cylindrical body 102 located rearward from the main body side hit part 106. do not do.

  The driving may be performed by an operator using, for example, a hammer. In addition, since the reinforcing material main body 104 is provided with the sharpened portion 103 at the distal end of the cylindrical body 102, by appropriately adjusting the striking force at the time of driving, the lining stone 43 is released to the side, and to a desired depth. You can drive in.

  When the reinforcement main body 104 is driven into the masonry wall 124, the striking rod 105 is pulled out from the cylindrical body 102 and removed, and then the grout material injection hose 122 is inserted into the cylindrical body 102.

  Next, by operating the pumping pump 123 connected to the base end side of the grout material injection hose 122, the grout material 141 is pumped to the hollow space 108 of the cylindrical body 102 as shown in FIGS. Then, the grout material 141 is discharged from the long hole 107 formed in the cylindrical body 102. While the pressure feed pump 123 is operated, the grout material injection hose 122 inserted into the cylindrical body 102 is removed from the cylindrical body 102. Pull out continuously or intermittently.

  In this manner, the grout material 141 is injected in advance from the back side of the masonry wall 124, and then sequentially injected toward the front side of the masonry wall 124.

  The grout material may be appropriately selected from, for example, cement milk, mortar and other known grout materials.

  As described above, according to the seismic reinforcing member 101 and the seismic reinforcing equipment 121 for the masonry wall according to the present embodiment, the grout material can be injected using the reinforcing material main body 104, so The diameter of the grout material injection hole 42 to be drilled can be made significantly smaller than before.

  Therefore, in combination with the action of discharging the grout material 141 injected into the hollow space 108 of the cylinder 102 from the long hole 107, the grout material injection is performed even if the injection pressure is set high so as to inject a highly viscous grout material. There is no concern that the grout material leaks from the hole 42.

  Therefore, not only can the discharged grout material be surely filled in the gap between the turning stones 43 to be integrated with the Satoshi stone 41, but also the reinforcing effect of the reinforcing material body 104 is added. Can be seismically reinforced at a high level.

  Moreover, according to the seismic reinforcement member 101 and the seismic reinforcement facility 121 of the masonry wall according to the present embodiment, when the reinforcement body 104 is inserted and driven, the long hole 107 faces upward. It is discharged upward, and the filling pressure is appropriately adjusted in consideration of the weight and viscosity of the grout material, so that the gaps of the burial stone 43 distributed within the region surrounding the reinforcing material body 104 are filled. Is done.

  Therefore, it becomes possible to more reliably integrate the reinforcing material main body 104, the turning stone 43, and the Satoshi stone 41.

  Moreover, according to the seismic reinforcement member 101 and the seismic reinforcement facility 121 of the masonry wall according to the present embodiment, when the reinforcement material body 104 is driven, it is not directly struck, but the impact rod is placed in the cylindrical body 102. 105 is inserted and its tip is pressed against the hitting portion 106 on the main body side. In this state, the hitting rod 105 is hit, so that the hitting force is mainly a sharp portion from the hitting portion 106 on the main body side. The striking force does not act on the cylindrical body 102 that acts only on the portion 103 and is located behind the hitting portion 106 on the main body side.

  Therefore, it is possible to prevent the buckling of the cylindrical body 102 due to the striking force and the bending deformation due to the eccentricity of the striking force, and the striking energy is lost due to the reaction force from the burial stone caused by the eccentricity of the striking force. Things can also be avoided. Furthermore, in connection with the ability to suppress the loss of impact energy, the reinforcing material body 104 can be driven with a small impact force, and the work burden during construction is reduced.

  Further, according to the seismic reinforcement member 101 and the seismic reinforcement facility 121 for the masonry wall according to the present embodiment, the impact force is not exerted on the cylindrical body 102 as described above, so that the strength and rigidity required for the cylindrical body 102 are reduced. Thus, the cylindrical body 102 can be reduced in weight. Further, along with the reduction in strength and rigidity, the processing of the long holes 107 becomes easier, and the degree of freedom of the dimensions and the number of arrangement of the long holes 107 increases.

  Moreover, according to the seismic reinforcement method for a masonry wall according to the present embodiment, the grout material injection hose 122 inserted into the cylinder 102 is continuously or intermittently inserted from the cylinder while the pumping pump 123 is operated. Since it was pulled out, the grout material 141 is injected in advance from the back side of the masonry wall 124, and then sequentially injected toward the front side of the masonry wall 124. Therefore, even if the wall thickness of the masonry wall 124 is large, it becomes possible to inject the grout material 141 reliably and uniformly.

  In the present embodiment, the example in which the seismic reinforcement method according to the second aspect of the present invention is implemented using the indirect impact type seismic reinforcing material 101 has been described. It is possible to carry out the seismic reinforcement method according to the invention.

  It should be noted that the specific procedure is the same as the above-described embodiment except that the striking rod 105 is omitted and the reinforcing member main body 104 is directly hit. Therefore, detailed description thereof is omitted here.

  Moreover, in this embodiment, when performing the seismic reinforcement of the masonry wall using the seismic reinforcement 101 and the seismic reinforcement equipment 121, the example using the seismic reinforcement method according to the second invention has been described. Instead of this, the insertion position of the grout material injection hose 122 in the cylinder 102 may be kept constant while the pressure feed pump 123 is operated.

  In this method, since the operation of pulling out the grout material injection hose 122 becomes unnecessary, it is effective when the thickness of the masonry wall 124 is small and when other grout material 141 can be uniformly injected.

  Further, in this embodiment, the plurality of elongated holes 107 are used as the grout material discharge ports, but instead, slits are formed along the material axis direction of the cylindrical body, and the slits can be used as discharge ports. Good.

  FIG. 7 is a plan view showing a reinforcement main body 104a according to a modification. As can be seen from the figure, the reinforcement main body 104a and a cylinder 102a in which a slit 161 is formed along the material axis direction and the cylinder. It is comprised from the sharpened part 103 provided in the front-end | tip of the body.

  According to such a configuration, it is possible to adjust the discharge amount of the grout material smoothly by the operation of pulling out the grout material injection hose 122, and it is possible to inject the grout material 141 more reliably and uniformly.

  Moreover, in this embodiment, although the front-end | tip of the cylinder 102 was welded to the sharpened part 103, how to join both is arbitrary.

  FIG. 8 is a view showing such a modification. The reinforcing material body 104b shown in FIG. 8A has a conical sharpened portion 103b in which a male screw 181 protrudes from the proximal end side and a female screw at the distal end. And is formed by screwing the male screw 181 of the sharpened portion 103b into the tip of the cylinder. In such a configuration, the end surface of the male screw 181 becomes the main body side hit portion 106b.

  The reinforcing material main body 104c shown in FIG. 5B is composed of a conical sharpened portion 103c formed by forming a female screw 182 on the base end side, and a cylindrical body 102c which is a tip closed type (bottomed type). A male screw 184 projecting outward from the bottom 183 of the cylinder is screwed into the female screw 182. In such a configuration, the bottom 183 becomes the main body hit part 106c.

It is the figure which showed the earthquake-resistant reinforcement material 101 of the masonry wall which concerns on this embodiment, (a) is a top view of the reinforcement material main body 104, (b) is a general view of the earthquake-proof reinforcement material 101, (c) is a reinforcement material main body. FIG. It is the figure which showed the earthquake-proof reinforcement equipment 121 of the masonry wall which concerns on this embodiment, (a) is a whole schematic diagram, (b) is a detailed drawing of the grout material injection hose 122 vicinity vicinity. The construction drawing which showed the procedure which performs the earthquake-proof reinforcement of a masonry wall using the earthquake-proof reinforcement material 101 which concerns on this embodiment. The construction drawing which showed the procedure which performs the earthquake-proof reinforcement of a masonry wall similarly using the earthquake-proof reinforcement material 11 which concerns on this embodiment. The front view which showed a mode that the masonry wall was drilled and the grout material injection hole 42 was formed. The figure which showed a mode that pull-out operation of the grout material injection | pouring hose 122 is performed. The top view which showed the reinforcement main body 104a which concerns on a modification. The top view which showed the reinforcing material main bodies 104b and 104c which concern on a modification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Seismic reinforcement material 102 of masonry wall Cylinder 103 Pointed part 104,104a, 104b, 104c
Reinforcing material body 105 Stroke rod 106 Body side hit part 107 Long hole (discharge port)
109 Rod-side impacted part 121 Seismic reinforcement equipment 122 Grout material injection hose 123 Pressure pump 124 Masonry wall 125 Seal material 141 Grout material 161 Slit (discharge port)

Claims (6)

It consists of a reinforcing material body provided with a sharp portion at the tip of the cylinder, and a striking rod inserted into the cylinder and having a rod-side striking part formed on the base end side. A hitting force from the hitting rod can be transmitted to the sharpened portion via the main body hitting portion by providing a main hitting portion on the main body side that is in contact with the inner side of the cylindrical body and behind the sharpened portion. An anti-seismic reinforcing material for a masonry wall, characterized in that an outlet for discharging a grout material press-fitted into the cylinder is formed in the cylinder. The sharpened portion is formed in a conical shape, and the cylindrical body is formed of a double-ended open cylinder whose both ends are released, and the tip of the double-ended openable cylinder is welded to the peripheral edge of the conical bottom of the sharpened portion and the cone The seismic reinforcing material according to claim 1, wherein the bottom surface is the hitting portion on the main body side. A reinforcing material main body having a sharpened portion provided at the tip of a cylindrical body, a masonry wall reinforcing material which is inserted into the cylindrical body and has a striking rod in which a rod side hitting portion is formed on the base end side, and the striking rod Instead, a masonry reinforcement facility comprising a grout material injection hose connected to the cylinder, the body-side impacted portion with which the tip of the hammering rod abuts is located inside the cylinder and the By providing behind the sharp part, the striking force from the striking rod can be transmitted to the sharp part through the hitting part on the main body side, and the grout material press-fitted into the cylindrical body is discharged. A seismic reinforcement facility for masonry walls, wherein a discharge port is formed in the cylinder. The earthquake-proof reinforcement equipment of Claim 3 which provided the sealing material which slidably contacts with the internal peripheral surface of the said cylinder on the outer peripheral surface of the front end vicinity of the said grout material injection | pouring hose. A masonry material constituting a masonry wall is drilled to form a grout material injection hole in the masonry material, and a discharge port through which the grout material is ejected is formed in a cylindrical body provided with a sharpened tip. Inserting the reinforcing material body of the seismic reinforcing material into the grout material injection hole, driving the reinforcing material body into the masonry wall while pushing away the burrs filled in the back of the masonry material, A seismic reinforcement method for a masonry wall, in which a grout material injection hose is inserted into the grout material injection wall and a grout material is discharged from the discharge port by operating a pressure feed pump connected to a proximal end side of the grout material injection hose. A plurality of outlets are arranged along the material axis direction of the cylindrical body or formed in a slit shape along the material axis direction of the cylindrical body, and a sealing material that is slidably in contact with the inner peripheral surface of the cylindrical body The grout material injection ho A stone masonry wall characterized in that the grout material injection hose inserted in the cylinder is continuously or intermittently pulled out from the cylinder while the pressure pump is operated. Seismic reinforcement method. The impact rod having a rod-side hit portion formed on the base end side and inserted into the cylinder is provided in the seismic reinforcement material, and the impact rod is inserted into the reinforcement body cylinder inserted into the grout material injection hole. And the tip of the striking rod is provided on the base end side of the striking rod in a state in which the tip of the striking rod is in contact with the hitting portion on the main body side provided behind the sharpened portion inside the cylindrical body. The reinforcing member main body is driven into the masonry wall by hitting the rod-side hitting portion, and after the driving is finished, the striking rod is pulled out from the cylindrical body, and then the grout material injection hose is The earthquake-proof reinforcement method of Claim 5 inserted in a cylinder.

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